1 kilogram rhubarb stalks
1 lemon, fine zest and juice
1 vanilla bean, halved and seeds scraped out
½ cup water
3 cups sugar
If the stalks of the rhubarb are large, lightly peel to remove the strings before cutting into 3 cm pieces. Peel, core and dice the apples. Zest the orange. Remove all the bitter white pith with a knife and cut the orange flesh into small pieces.
Put the rhubarb, apples, orange zest and flesh, lemon zest and juice, vanilla pod and seeds, water and the sugar in a saucepan and slowly bring to the boil, stirring to dissolve the sugar. Increase the heat and simmer for about 30 minutes, stirring occasionally to prevent sticking. Test for setting point then pour into warm sterilized jars and seal. Makes about 4 cups
Pantry Note: Rhubarb leaves are poisonous, containing significant quantities of oxalic acid, and must never be eaten.